Merc-O-Tronics 98 - Checking Suppression Diode

UNSOTDER
RTGUTATOR
DIODE I.EAD
OHMMETER
UNSOI.DER
DIODE
TEAD
REGUTATOR
OHMMEIER
CHECKING
SUPPRESSION
DIODT
Figure
39
SUPPRESSION
DIODE
1, To check
the suppression
diode,
unsolder
its lead
from
the regulator
base and
connect
the
small
leads
from ana|yzer
from
the diode
lead
to
the
diode case
(Fig.
39).
Use Test Position
No. 3.
2. Then reverse
the ohmmeter
lead
connections.
3.
If
both
readings
are
very
high
(infinite),
the diode
is
open.
4. If
both
readings a:l^e
zero,
the diode is shorted.
5.
To
replace the diode,
merely
unsolder
the connections.
CAUTION:
Excessive
heat
will
damage
diode.
39